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Influence of Plant Combinations on Population Characteristics of Bemisia tabaci Biotypes B and Q

文献类型： 外文期刊

作者： Chu, Dong 1 ; Tao, Yun Li 1 ; Chi, Hsin 3 ;

作者机构： 1.Shandong Acad Agr Sci, Hightech Res Ctr, Key Lab Genet Improvement Crop Anim & Poultry Sha, Jinan 250100, Peoples R China

2.Minist Agr, Key Lab Crop Genet Improvement & Biotechnol, Jinan 250100, Peoples R China

3.Natl Chung Hsing Univ, Dept Entomol, Taichung 40227, Taiwan

关键词： Bemisia tabaci biotype B; biotype Q; biology; host plant; biological invasion

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.381； 五年影响因子：2.568 ）

ISSN： 0022-0493

年卷期： 2012 年 105 卷 3 期

页码：

收录情况： SCI

摘要： In recent years, the dominant biotype of Bemisia tabaci (Gennadius) has shifted from biotype B to Q in many locations of China. Our field monitoring showed that B. tabaci biotype Q could be found on pepper Capsicum frutescens L. while biotype B could not be found on the plant. To study the role of the host plant in the displacement of biotype B by Q, the adult mortality, female fecundity, and adult emergence of both biotypes B and Q on different host combinations were studied using a model system involving pepper and eggplant. The results showed that pepper is not a preferred host for either biotype B or Q adults in comparison with eggplant. The negative impact of pepper to biotype B is, however, much greater than that to biotype Q. Because both the survival rates of the adult whitefly and the average number of emerged adults per female of biotype Q on pepper are higher than that of biotype B, biotype Q showed higher fitness in comparison with biotype B. Our results suggest that the existence and differential impact of a nonpreferred host might affect the population fitness and therefore could play a role in the displacement of biotype B in some regions.

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